Assess Dietary Intake, Nutitional Knowledge, Eating Behaviours and Body Composition Characeristics in HIFT AthletesNU-KCHANCT07531953
Nutritional Knowledge and Characteristics of HYROX Athletes
An observational study of Assess Dietary Intake, Nutitional Knowledge, Eating Behaviours and Body Composition Characeristics in HIFT Athletes, run by University of Alicante at 1 site in Spain.
Trial summary
This is an observational study aiming to assess the nutritional knowledge, dietary habits, supplement use, body composition, and physiological profiles of HYROX athletes. The main objective is to describe and evaluate the nutritional, anthropometric, and performance-related characteristics of these athletes to better… Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Assess Dietary Intake, Nutitional Knowledge, Eating Behaviours and Body Composition Characeristics in HIFT Athletes
- How many people
- 122 participants
- Where
- 1 siteSpain
- Study dates
- 25 Sep 2025to 28 Jun 2031
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Study population: HYROX athletes
Who may be able to join
- competitive HYROX athletes
- age 18 or older
- having participated in at least one official HYROX competition in the past 24 months
Who cannot join
- Participants not included in the Pro or Open categories were excluded
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Spain1 site, 1 recruiting
- Recruiting
Faculty of Health Sciences. University of Alicante
Alicante, Alicante, 03690
Martinez Sanz, Dr, +34 620420726, josemiguel.ms@ua.es
About this study
Official title: Nutritional Knowledge and Characteristics of HYROX Athletes: A Cross-Sectional Study
This is an observational study aiming to assess the nutritional knowledge, dietary habits, supplement use, body composition, and physiological profiles of HYROX athletes. The main objective is to describe and evaluate the nutritional, anthropometric, and performance-related characteristics of these athletes to better understand factors influencing race performance. The main question it seeks to answer is: What are the nutritional, kinanthropometric, and physiological profiles of HYROX athletes, and how are dietary practices, supplement use, and body composition associated with their performance?
Read the detailed description
HYROX athletes represent a unique cohort characterized by specific nutritional, physiological, and multi-modal performance demands, including body composition, strength, and endurance. Despite the global growth of hybrid fitness competitions, empirical evidence regarding the dietary practices, nutritional knowledge, and body composition of these athletes remains limited. This study addresses this gap through a comprehensive cross-sectional assessment of competitive HYROX athletes.
Data were collected using validated online questionnaires, including a Short Food Frequency Questionnaire (SFFFQ) to evaluate dietary intake, a 20-item supplement use questionnaire assessing consumption patterns, beliefs, and knowledge, and the Abbreviated Nutrition for Sport Knowledge Questionnaire (A-NSKQ) to measure nutritional knowledge. Eating behaviors and potential disordered eating were screened using the EAT-26 and the Figure Rating Scale (FRS). This structured protocol enables a detailed characterization of dietary habits, supplementation practices, nutritional knowledge, and body composition among HYROX athletes. By synthesizing these metrics, the study establishes a foundational characterization of the hybrid athlete, identifying physiological risks and providing the evidence-based framework necessary to optimize competitive performance
- Keywords
- HYROX, Body composition, Nutritional Assessment, HIFT
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| Male athletes | Competitive male athletes | |
| Female athletes | Competitive female athletes |
What is being measured
The primary outcome is the main question the study is designed to answer.
Dietary intake
A validated Short Food Frequency Questionnaire (SFFFQ) will be used to assess dietary quality. The questionnaire consists of 20 items covering key food groups, including fruits, vegetables, high-fiber foods, high-fat and sugary foods, meat and meat products, and fish. Participants are asked to report the frequency of foods and beverages consumed during a "typical week" over the past month. Response options range from "rarely or never" to "more than five times per day." The final score will be calculated based on the extent to which participants meet the UK dietary recommendations.
Measured: 5 years
Secondary outcomes (1)
Body composition
Assess body composition by anthropometry to estimate muscle mass and fat mass
Measured: 5 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted15 Apr 2026
- Study start25 Sep 2025
- Primary completion8 Jan 2027 (estimated)
- Study completion28 Jun 2031 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (6)Papers the sponsor has linked to this study.
- Other trials for Assess Dietary Intake, Nutitional Knowledge, Eating Behaviours and Body Composition Characeristics in HIFT AthletesStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Other
- Time perspective
- Cross-sectional
- Enrolment
- 122 participants (estimated)
Sponsor and investigators
- Lead sponsor
- University of Alicante
- Sponsor type
- University, hospital or other
- Collaborators
- University of Stirling
- Responsible party
- Principal investigator, Jose Miguel Martinez Sanz, University of Alicante
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07531953
- Sponsor's protocol ID
- UA-2025-07-14
- Acronym
- NU-KCHA
- Status last verified
- Mar 2026
- First submitted
- 23 Mar 2026
- Last updated
- 15 Apr 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No: The data are available from the authors on request from the IP JMMS (josemiguel.ms@ua.es).
Publications
Kong P, Harris LM. The sporting body: body image and eating disorder symptomatology among female athletes from leanness focused and nonleanness focused sports. J Psychol. 2015 Jan-Apr;149(1-2):141-60. doi: 10.1080/00223980.2013.846291. Epub 2014 Mar 4.
PubMed 25511202Trakman GL, Forsyth A, Hoye R, Belski R. Development and validation of a brief general and sports nutrition knowledge questionnaire and assessment of athletes' nutrition knowledge. J Int Soc Sports Nutr. 2018 Apr 19;15:17. doi: 10.1186/s12970-018-0223-1. eCollection 2018.
PubMed 29713248Jovanov P, Dordic V, Obradovic B, Barak O, Pezo L, Maric A, Sakac M. Prevalence, knowledge and attitudes towards using sports supplements among young athletes. J Int Soc Sports Nutr. 2019 Jul 4;16(1):27. doi: 10.1186/s12970-019-0294-7.
PubMed 31272457Lafontant K, Livingston J, Smith S, Da Silva Barbera MA, Gonzalez C, Kampiyil S, Nguyen NLN, Johnson B, Stout JR, Fukuda DH. Describing Dietary Habits and Body Composition Among High-Intensity Functional Training Athletes: A Mixed Methods Approach. Sports (Basel). 2025 Oct 2;13(10):340. doi: 10.3390/sports13100340.
PubMed 41150475Cavedon V, Milanese C, Marchi A, Zancanaro C. Different amount of training affects body composition and performance in High-Intensity Functional Training participants. PLoS One. 2020 Aug 20;15(8):e0237887. doi: 10.1371/journal.pone.0237887. eCollection 2020.
PubMed 32817652Adami PE, Rocchi JE, Melke N, De Vito G, Bernardi M, Macaluso A. Physiological profile comparison between high intensity functional training, endurance and power athletes. Eur J Appl Physiol. 2022 Feb;122(2):531-539. doi: 10.1007/s00421-021-04858-3. Epub 2021 Dec 1.
PubMed 34853894
Study at a glance
From the registry record, last updated by the sponsor on 15 Apr 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Nutritional Knowledge and Characteristics of HYROX Athletes: A Cross-Sectional Study
- ClinicalTrials.gov ID
- NCT07531953
- Acronym / sponsor ID
- NU-KCHA / UA-2025-07-14
- Keywords
- HYROX, Body composition, Nutritional Assessment, HIFT
- Study type
- Observational
- Recruitment status
- Recruiting
- Enrolment
- 122 participants (estimated)
- Lead sponsor
- University of AlicanteUniversity, hospital or other
- Collaborators
- University of Stirling
- Study start
- 25 Sep 2025 (actual)
- Primary completion
- 8 Jan 2027 (estimated)
- Study completion
- 28 Jun 2031 (estimated)
- First posted
- 15 Apr 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This is an observational study aiming to assess the nutritional knowledge, dietary habits, supplement use, body composition, and physiological profiles of HYROX athletes. The main objective is to describe and evaluate the nutritional, anthropometric, and performance-related characteristics of these athletes to better understand factors influencing race performance. The main question it seeks to answer is: What are the nutritional, kinanthropometric, and physiological profiles of HYROX athletes, and how are dietary practices, supplement use, and body composition associated with their performance?
Detailed description
HYROX athletes represent a unique cohort characterized by specific nutritional, physiological, and multi-modal performance demands, including body composition, strength, and endurance. Despite the global growth of hybrid fitness competitions, empirical evidence regarding the dietary practices, nutritional knowledge, and body composition of these athletes remains limited. This study addresses this gap through a comprehensive cross-sectional assessment of competitive HYROX athletes.
Data were collected using validated online questionnaires, including a Short Food Frequency Questionnaire (SFFFQ) to evaluate dietary intake, a 20-item supplement use questionnaire assessing consumption patterns, beliefs, and knowledge, and the Abbreviated Nutrition for Sport Knowledge Questionnaire (A-NSKQ) to measure nutritional knowledge. Eating behaviors and potential disordered eating were screened using the EAT-26 and the Figure Rating Scale (FRS). This structured protocol enables a detailed characterization of dietary habits, supplementation practices, nutritional knowledge, and body composition among HYROX athletes. By synthesizing these metrics, the study establishes a foundational characterization of the hybrid athlete, identifying physiological risks and providing the evidence-based framework necessary to optimize competitive performance
Study design
- Observational model
- Other
- Time perspective
- Cross-sectional
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Male athletes | – | –Competitive male athletes |
| Female athletes | – | –Competitive female athletes |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
- Study population
- HYROX athletes
Key inclusion criteria (3 listed)
- competitive HYROX athletes
- age 18 or older
- having participated in at least one official HYROX competition in the past 24 months
Key exclusion criteria (1 listed)
- Participants not included in the Pro or Open categories were excluded
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Dietary intake
Time frame: 5 years
A validated Short Food Frequency Questionnaire (SFFFQ) will be used to assess dietary quality. The questionnaire consists of 20 items covering key food groups, including fruits, vegetables, high-fiber foods, high-fat and sugary foods, meat and meat products, and fish. Participants are asked to report the frequency of foods and beverages consumed during a "typical week" over the past month. Response options range from "rarely or never" to "more than five times per day." The final score will be calculated based on the extent to which participants meet the UK dietary recommendations.
1 secondary outcome
Body composition
Time frame: 5 years
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 15 Apr 2026.
- Results publication: PubMed 25511202Kong P, Harris LM. The sporting body: body image and eating disorder symptomatology among female athletes from leanness focused and nonleanness focused sports. J Psychol. 2015 Jan-Apr;149(1-2):141-60. doi: 10.1080/00223980.2013.846291. Epub 2014 Mar 4.
- Results publication: PubMed 29713248Trakman GL, Forsyth A, Hoye R, Belski R. Development and validation of a brief general and sports nutrition knowledge questionnaire and assessment of athletes' nutrition knowledge. J Int Soc Sports Nutr. 2018 Apr 19;15:17. doi: 10.1186/s12970-018-0223-1. eCollection 2018.
- Results publication: PubMed 31272457Jovanov P, Dordic V, Obradovic B, Barak O, Pezo L, Maric A, Sakac M. Prevalence, knowledge and attitudes towards using sports supplements among young athletes. J Int Soc Sports Nutr. 2019 Jul 4;16(1):27. doi: 10.1186/s12970-019-0294-7.
- Results publication: PubMed 41150475Lafontant K, Livingston J, Smith S, Da Silva Barbera MA, Gonzalez C, Kampiyil S, Nguyen NLN, Johnson B, Stout JR, Fukuda DH. Describing Dietary Habits and Body Composition Among High-Intensity Functional Training Athletes: A Mixed Methods Approach. Sports (Basel). 2025 Oct 2;13(10):340. doi: 10.3390/sports13100340.
- Results publication: PubMed 32817652Cavedon V, Milanese C, Marchi A, Zancanaro C. Different amount of training affects body composition and performance in High-Intensity Functional Training participants. PLoS One. 2020 Aug 20;15(8):e0237887. doi: 10.1371/journal.pone.0237887. eCollection 2020.
- Results publication: PubMed 34853894Adami PE, Rocchi JE, Melke N, De Vito G, Bernardi M, Macaluso A. Physiological profile comparison between high intensity functional training, endurance and power athletes. Eur J Appl Physiol. 2022 Feb;122(2):531-539. doi: 10.1007/s00421-021-04858-3. Epub 2021 Dec 1.
- Individual participant dataSharing planned: No. The data are available from the authors on request from the IP JMMS (josemiguel.ms@ua.es).
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Assess Dietary Intake, Nutitional Knowledge, Eating Behaviours and Body Composition Characeristics in HIFT Athletes, run by University of Alicante at 1 site in Spain.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 15 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Spain. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Jose Miguel Martinez Sanz, Dr (+34 620420726, josemiguel.ms@ua.es), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Dietary intake (time frame: 5 years). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT07531953, which also lists 6 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 Apr 2026.